资料介绍
The MAX6819/MAX6820 are power-supply sequencers
for dual-voltage microprocessors (μPs) and multivoltage
systems. These devices monitor a primary supply voltage
and enable/disable an external n-channel MOSFET
switch for a secondary supply voltage. The MAX6819/
MAX6820 control local component voltage sequencing
when system power-on/power-off characteristics cannot
be guaranteed (supplies come from a multivoltage system
bus, silver box, or must be sequenced in different
modes for components on the same board). These small
power-supply sequencers improve system reliability.
The MAX6819/MAX6820 include an internal voltage reference/
comparator with externally adjustable thresholds
to monitor the primary power supply. When the
primary supply is below the desired threshold, an external
secondary supply MOSFET switch is disabled.
When the primary supply exceeds the threshold, an
internal charge pump is activated and the external
MOSFET switch is enabled to connect the secondary
supply to the load. The charge pump fully enhances the
n-channel MOSFET switch to provide a very low RDSON
voltage drop. The devices can be connected to
support various supply sequencing priorities such as
VI/O before VCORE or VCORE before VI/O.
The MAX6819 features a logic-driven EN input to
enable/disable the external MOSFET drive and includes
an internally fixed 200ms enable timeout period
(VPRIMARY GOOD to VSECONDARY ENABLE). The
MAX6820 allows the enable timeout period to be
adjusted with a single external capacitor. Both devices
are specified over the automotive temperature range
(-40°C to +125°C) and are available in space-saving
6-pin SOT23 packages.
Applications
Dual-Voltage Microprocessors
Multivoltage Systems
Digital Signal Processors
Power PC™ Series Processors
for dual-voltage microprocessors (μPs) and multivoltage
systems. These devices monitor a primary supply voltage
and enable/disable an external n-channel MOSFET
switch for a secondary supply voltage. The MAX6819/
MAX6820 control local component voltage sequencing
when system power-on/power-off characteristics cannot
be guaranteed (supplies come from a multivoltage system
bus, silver box, or must be sequenced in different
modes for components on the same board). These small
power-supply sequencers improve system reliability.
The MAX6819/MAX6820 include an internal voltage reference/
comparator with externally adjustable thresholds
to monitor the primary power supply. When the
primary supply is below the desired threshold, an external
secondary supply MOSFET switch is disabled.
When the primary supply exceeds the threshold, an
internal charge pump is activated and the external
MOSFET switch is enabled to connect the secondary
supply to the load. The charge pump fully enhances the
n-channel MOSFET switch to provide a very low RDSON
voltage drop. The devices can be connected to
support various supply sequencing priorities such as
VI/O before VCORE or VCORE before VI/O.
The MAX6819 features a logic-driven EN input to
enable/disable the external MOSFET drive and includes
an internally fixed 200ms enable timeout period
(VPRIMARY GOOD to VSECONDARY ENABLE). The
MAX6820 allows the enable timeout period to be
adjusted with a single external capacitor. Both devices
are specified over the automotive temperature range
(-40°C to +125°C) and are available in space-saving
6-pin SOT23 packages.
Applications
Dual-Voltage Microprocessors
Multivoltage Systems
Digital Signal Processors
Power PC™ Series Processors
下载该资料的人也在下载
下载该资料的人还在阅读
更多 >
- 基于TB6819FG_Typical Application直流到直流单输出电源的
- 基于ADM6819_Typical ApplicationMicroprocessor Power Supervisory的参考设计
- ADM6819/ADM6820:FET驱动器简单序列器<sup>®</sup>数据表
- 简单的音序器®FET驱动器ADM6819/ADM6820数据表 3次下载
- MAX481,MAX483,MAX485,MAX487–MAX491 datasheet pdf
- MAX603,MAX604 datasheet pdf
- ADM6819/ADM6820,datasheet,pdf(
- MAX690, MAX691, MAX692 pdf dat
- MAX7404, MAX7407 pdf datasheet
- MAX2361, MAX2363, MAX2365 pdf
- MAX8840-MAX8842中文资料pdf
- MAX8805-MAX8805Z中文资料pdf
- MAX4914B-MAX4917B中文资料pdf
- MAX4795/6/7,MAX4798中文资料pdf
- MAX4772-MAX4773中文资料pdf
- max30100和max30102的区别 4404次阅读
- 配合MAX9217/MAX9218/MAX9247/MAX9248/MAX9250评估板工作 2109次阅读
- MAX2644和MAX2242适用于2.4GHz频率开关WLAN应用 829次阅读
- 排序电路提供伪电压跟踪器 524次阅读
- 单电源排序器对负电压进行排序 594次阅读
- 低功耗可穿戴的高度集成电池充电和电源解决方案-MAX77650/MAX77651 2843次阅读
- max3485与max485区别详解(解析为什么max3485不能代替max485) 10w次阅读
- MAX8873,MAX8874低压差、120mA线性稳压器数据资料 1412次阅读
- MAX14576,MAX14636,MAX14637 USB充电器检测器 1755次阅读
- MAX9039–MAX9043,MAX9050–MAX9053低功耗比较器与精密电压基准源 1782次阅读
- MAX5134-MAX5137内最小的16位DAC 1724次阅读
- MAX4751,MAX4752,MAX4753低电压、单电源、四路SPST模拟开关 1w次阅读
- MAX4617-MAX4619低电压、CMOS模拟多路复用器/开关 6145次阅读
- 如何优化MAX16974-MAX16976的电路布局 2036次阅读
- MAX5970应用电路 2656次阅读
下载排行
本周
- 1TC358743XBG评估板参考手册
- 1.36 MB | 330次下载 | 免费
- 2开关电源基础知识
- 5.73 MB | 11次下载 | 免费
- 3嵌入式linux-聊天程序设计
- 0.60 MB | 3次下载 | 免费
- 4DIY动手组装LED电子显示屏
- 0.98 MB | 3次下载 | 免费
- 5基于FPGA的C8051F单片机开发板设计
- 0.70 MB | 2次下载 | 免费
- 651单片机窗帘控制器仿真程序
- 1.93 MB | 2次下载 | 免费
- 751单片机PM2.5检测系统程序
- 0.83 MB | 2次下载 | 免费
- 8基于51单片机的RGB调色灯程序仿真
- 0.86 MB | 2次下载 | 免费
本月
- 1OrCAD10.5下载OrCAD10.5中文版软件
- 0.00 MB | 234315次下载 | 免费
- 2555集成电路应用800例(新编版)
- 0.00 MB | 33566次下载 | 免费
- 3接口电路图大全
- 未知 | 30323次下载 | 免费
- 4开关电源设计实例指南
- 未知 | 21549次下载 | 免费
- 5电气工程师手册免费下载(新编第二版pdf电子书)
- 0.00 MB | 15349次下载 | 免费
- 6数字电路基础pdf(下载)
- 未知 | 13750次下载 | 免费
- 7电子制作实例集锦 下载
- 未知 | 8113次下载 | 免费
- 8《LED驱动电路设计》 温德尔著
- 0.00 MB | 6656次下载 | 免费
总榜
- 1matlab软件下载入口
- 未知 | 935054次下载 | 免费
- 2protel99se软件下载(可英文版转中文版)
- 78.1 MB | 537798次下载 | 免费
- 3MATLAB 7.1 下载 (含软件介绍)
- 未知 | 420027次下载 | 免费
- 4OrCAD10.5下载OrCAD10.5中文版软件
- 0.00 MB | 234315次下载 | 免费
- 5Altium DXP2002下载入口
- 未知 | 233046次下载 | 免费
- 6电路仿真软件multisim 10.0免费下载
- 340992 | 191186次下载 | 免费
- 7十天学会AVR单片机与C语言视频教程 下载
- 158M | 183279次下载 | 免费
- 8proe5.0野火版下载(中文版免费下载)
- 未知 | 138040次下载 | 免费
评论
查看更多